Modify degree of Bezier interpolation between keyframes for animating an object
This can be achieved by right clicking the timeline and choosing the option &quot;Interpolation mode&quot;.

To the right are all the interpolations that are available. In your case since you do not want the Bezier interpolation, you can choose Linear interpolation which interpolates with constant speed. There are bunch of other interpolation modes too if you want to try them out (check image).